Functools – The Power of Higher-Order Functions in Python

• py-validate

  3 0 0.0 Python

  module for making python scripts operate as HTTP JSON API

Yes! List/Dictionary/Generator comprehension is one big plus for Python, it probably came from the functional world. I use it whenever I can.

> But even the lambda keyword isn't so bad, you can create a dictionary of expressions to call by name, a lot more compact them declaring them the usual way imo: https://github.com/jazzyjackson/py-validate/blob/master/pyva...

lambda keyword is better than nothing, it definitely can be improved. Just imaging using javascript syntax in your example.

> To your point, I only recently learned there's a Map function in Python, while in JS I'm .map(x=>y).filter(x=>y).reduce(x=>y)ing left and right.

I think with the introduction of list comprehension Guido saw map function was no longer needed, that was why he wanted it removed. I don't deny it, but using map and filter sometimes are just easier to read. Say [foo(v) for v in a] vs map(foo, a).

• pampy

  2 3,503 0.0 Python

  Pampy: The Pattern Matching for Python you always dreamed of.

Here is pattern matching as a library that is not built using statements,

https://github.com/santinic/pampy

Clearly it's possible. It's also more ergonomic than PEP 622.

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• Coconut

  27 3,943 9.4 Python

  Simple, elegant, Pythonic functional programming.

Also worth a look

http://coconut-lang.org/

> Coconut is a functional programming language that compiles to Python. Since all valid Python is valid Coconut, using Coconut will only extend and enhance what you're already capable of in Python.

> Why use Coconut? Coconut is built to be useful. Coconut enhances the repertoire of Python programmers to include the tools of modern functional programming, in such a way that those tools are easy to use and immensely powerful; that is, Coconut does to functional programming what Python did to imperative programming. And Coconut code runs the same on any Python version, making the Python 2/3 split a thing of the past.

• py2many

  29 590 8.1 Python

  Transpiler of Python to many other languages

  

I'm interested in similar proposals that can provide the basis of some common syntax that could be transpiled to other functional programming languages https://github.com/adsharma/py2many

I'm less interested in the syntax (will take anything accepted by a modified ast module), more in the semantics.

Here's a syntax I played with in the past:

  def area(s: Shape):

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